JP2009186081A - Indoor unit of air conditioning device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an indoor unit of an air conditioning device capable of preventing a user from touching a rising panel. <P>SOLUTION: This indoor unit 1 of the ceiling embedded air conditioning device includes a body 2, a flat panel 3, a receiving portion 6, and a panel movement control portion 11. The flat panel 3 can take a locked state and an unlocked state, and can be lowered to a lower part of the body 2 when the unlocked state is taken. The receiving portion 6 can receive a command for rising the flat panel 3. The panel movement control portion 11 controls the movement of the flat panel 3 to rise the flat panel 3 by receiving the command for rising the flat panel 3 by the receiving portion 6, in a case when the indoor unit 1 is powered on in the unlocked state of the flat panel 3. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an indoor unit of an air conditioner, and more particularly to an indoor unit of a ceiling-mounted air conditioner.

  Conventionally, as an indoor unit of an air conditioner installed on a ceiling, for example, as disclosed in Patent Literature 1 to Patent Literature 3, one having a suction port or a blowout port on the lower surface of a main body is well known. Yes. And the panel for opening and closing a suction inlet is provided in the lower surface of the main body of an indoor unit. This panel can be suspended from the indoor unit main body by a wire.

Moreover, in the air conditioning apparatus as described above, for example, there is an air conditioning apparatus that opens and closes the suction port when the panel is locked to the indoor unit body during air conditioning operation or when stopped. Further, such a panel of the air conditioner can take a state in which the lock on the indoor unit body is released during maintenance of the indoor unit, and can be lowered below the indoor unit body.
JP 2005-156083 A JP 2007-40689 A JP-A-10-196999

  By the way, when the panel is in the unlocked state and lowered to the lower side of the indoor unit main body, when the power of the indoor unit is turned on, the panel once rises and is stored in the indoor unit main body before the next operation. Generally, it is conceivable to start a so-called initialization process for shifting to (1). However, in this case, for example, when the user of the indoor unit is working between the panel and the indoor unit main body, the user comes into contact with the rising panel, which is dangerous.

  Then, an object of this invention is to provide the indoor unit of the air conditioning apparatus which can avoid the danger that a user contacts a rising panel.

  An indoor unit of an air conditioner according to a first aspect is an indoor unit of a ceiling-mounted air conditioner, and includes an indoor unit main body, a panel, an instruction receiving unit, and a panel operation control unit. The panel can take a locked state in which the panel is locked to the indoor unit body and a unlocked state in which the lock on the indoor unit body is released. And when taking a lock release state, a panel can fall below an indoor unit main body. The instruction receiving unit can receive a panel lift instruction. The panel operation control unit controls the operation of the panel so that when the indoor unit is powered on when the panel is unlocked, the instruction accepting unit accepts the panel ascending instruction to raise the panel.

  According to the indoor unit of this air conditioner, when the panel is unlocked and the indoor unit is turned on, the panel is instructed to raise the panel, for example, by a user of the indoor unit through a remote controller or the like. Rise based. Therefore, it is possible to avoid the danger of the user coming into contact with the rising panel.

  An indoor unit of an air conditioner according to a second aspect of the present invention is the indoor unit of the air conditioner according to the first aspect of the present invention, further comprising a first detector. The first detection unit detects that the panel is located at the first predetermined position. The panel operation control unit raises the panel until the first detection unit detects that the panel has reached the first predetermined position.

  Here, consider a case where the first detection unit outputs an off signal when the panel is not located at the first predetermined position, and outputs an on signal when the panel is located at the first predetermined position. In this case, for example, when the detection result of the first detection unit remains the off signal, the panel operation control unit determines that the panel is not sufficiently raised and continues the panel raising operation. Further, when the detection result is switched from the off signal to the on signal, the panel operation control unit determines that the panel has sufficiently risen and stops the raising operation of the panel. Thereby, the panel can be reliably raised to the first predetermined position.

  An air conditioner indoor unit according to a third aspect of the present invention is the air conditioner indoor unit according to the second aspect, wherein the first predetermined position is near the lower surface of the indoor unit main body.

  Thus, the panel can be raised to the first predetermined position, that is, near the lower surface of the indoor unit main body.

  An indoor unit of an air conditioner according to a fourth aspect of the present invention is the indoor unit of the air conditioner according to any of the first to third aspects, wherein an indoor air suction port is formed on the lower surface of the indoor unit main body. When the panel is in a locked state, the suction port can be opened and closed by raising and lowering one end of the panel. The panel operation control unit lowers one end of the panel by a predetermined distance when the power to the indoor unit is turned on when the panel is locked. And a panel operation control part raises the one end part of a panel, after the one end part of a panel falls a predetermined distance.

  According to the indoor unit of this air conditioner, when the power of the indoor unit is turned on while the panel is locked to the indoor unit body, one end of the panel is lowered by a predetermined distance. That is, first, the panel performs an operation to open the suction port of the indoor unit main body. Thereafter, one end of the panel is raised. In other words, the panel performs an operation of opening the suction port of the indoor unit main body and then performing an operation of closing the suction port. Therefore, for example, when the panel is completely stored in the indoor unit main body, and the panel cannot move to the next operation (for example, the panel lowering operation) because the lifting operation of one end of the panel is not completed. Can be prevented.

  The indoor unit of the air conditioning apparatus according to a fifth aspect is the indoor unit of the air conditioning apparatus according to the fourth aspect, further comprising a second detection unit. The second detection unit outputs a first detection result indicating that one end of the panel is located at the second predetermined position, or a second detection result indicating that the one end of the panel is not located at the second predetermined position. The predetermined distance is a distance by which the panel descends until the output of the second detection unit changes from the first detection result to the second detection result.

  According to the indoor unit of this air conditioner, one end of the panel is lowered by the amount that the output of the second detection unit changes from the first detection result to the second detection result (that is, a predetermined distance). Therefore, one end of the panel can be reliably lowered by a predetermined distance.

  An air conditioner indoor unit according to a sixth aspect of the present invention is the air conditioner indoor unit according to the fourth or fifth aspect of the present invention, further comprising a third detection unit. A 3rd detection part detects that the one end part of a panel is located in a 3rd predetermined position. The panel operation control unit raises the one end of the panel until the third detection unit detects that the one end of the panel has reached the third predetermined position after the one end of the panel has been lowered by a predetermined distance.

  Here, the third detector outputs an off signal when one end of the panel is not located at the third predetermined position, and outputs an on signal when one end of the panel is located at the third predetermined position. Think about the case. In this case, for example, when the detection result of the third detection unit remains an off signal, the panel operation control unit determines that one end of the panel is not sufficiently raised and continues the raising operation of the one end of the panel. Let In addition, when the detection result is switched from the off signal to the on signal, the panel operation control unit determines that one end of the panel has sufficiently risen, and stops the raising operation of the one end of the panel. Thereby, the one end part of a panel can rise to a 3rd predetermined position reliably.

  The indoor unit of the air conditioning apparatus according to a seventh aspect is the indoor unit of the air conditioning apparatus according to the sixth aspect, wherein the second predetermined position and the third predetermined position are near the lower surface of the indoor unit main body.

  According to the indoor unit of this air conditioner, it can be easily determined whether or not the panel is lowered below the second predetermined position in the vicinity of the lower surface of the indoor unit body. Further, according to this indoor unit, the panel whose one end is lowered by a predetermined distance can be surely raised to the third predetermined position near the lower surface of the indoor unit main body.

  According to the indoor unit of the air conditioning apparatus according to the first aspect, it is possible to avoid a risk that the user comes into contact with the rising panel.

  According to the indoor unit of the air conditioning apparatus according to the second aspect, the panel can be reliably raised to the first predetermined position.

  According to the indoor unit of the air conditioner according to the third aspect, the panel can be raised to the first predetermined position, that is, near the lower surface of the indoor unit main body.

  According to the indoor unit of the air conditioner according to the fourth aspect of the present invention, for example, the panel is completely stored in the indoor unit body, and the panel does not complete the ascending operation of one end of the panel. It is possible to prevent a case in which it is not possible to shift to a lowering operation of the

  According to the indoor unit of the air conditioning apparatus according to the fifth aspect, one end of the panel can be reliably lowered by a predetermined distance.

  According to the indoor unit of an air conditioner pertaining to a sixth aspect of the invention, the one end of the panel can reliably rise to the third predetermined position.

  According to the indoor unit of the air conditioner according to the seventh aspect, it is possible to easily determine whether or not the panel has been lowered below the second predetermined position in the vicinity of the lower surface of the indoor unit body. Further, according to this indoor unit, the panel whose one end is lowered by a predetermined distance can be surely raised to the third predetermined position near the lower surface of the indoor unit main body.

  Hereinafter, an indoor unit of an air conditioner according to the present invention will be described with reference to the drawings.

(1) Configuration FIGS. 1A to 1C are perspective views of an indoor unit 1 of an air conditioner according to the present embodiment. FIG. 2 is a schematic diagram when the internal configuration of the indoor unit 1 of FIG. 1 is viewed from the first side surface 2 a side of the indoor unit 1. This indoor unit 1 is a ceiling-mounted indoor unit, and can perform air conditioning operations such as heating operation and cooling operation, filter cleaning operation, and the like. Here, the filter cleaning operation is an operation for separating dust collected by the filter 25 described later from the filter 25.

  As shown in FIGS. 1 to 8, the indoor unit 1 mainly includes a main body 2 (corresponding to an indoor unit main body), a flat panel 3 (corresponding to a panel), and storage detection limit switches 4a and 4b (first detection unit, first 2 detection unit, corresponding to the third detection unit), horizontal flap 5, receiving unit 6 (corresponding to the instruction receiving unit), operation state display unit 7, panel lock mechanisms 8a, 8b, panel lift drive units 9a, 9b, and control unit 10 is provided.

  In the following, expressions indicating directions such as “up” and “down” such as “downward” of the main body 2 are used as appropriate, but these are used in the indoor unit 1 as shown in FIG. Each direction in the state where it is attached to the ceiling and normally used is shown.

[Main unit]
The main body 2 has a box-like shape that is long in the W direction of FIG. 1, and has a decorative panel 2b as a lower surface. As shown in FIG.1 and FIG.2, the suction panel 21 and the blower outlet 22 are formed in the makeup | decoration panel 2b 1 each. The suction port 21 is an opening through which indoor air is sucked, and the blow-out port 22 is for sucking air after being sucked from the suction port 21 and heat-exchanged by the indoor heat exchanger 24 into the room. It is an opening. The suction port 21 and the blowout port 22 have a substantially rectangular shape that is elongated along the longitudinal direction of the main body 2 (that is, the W direction). The area of the suction port 21 is larger than the area of the blowout port 22.

  As shown in FIG. 2, the main body 2 mainly contains a blower fan 23, an indoor heat exchanger 24, a filter 25, a filter cleaning mechanism 26, and the like. The blower fan 23 is for generating an air flow from the suction port 21 to the blowout port 22. The blower fan 23 is connected to a fan motor 23a (FIG. 8) and is rotationally driven by the fan motor 23a. The indoor heat exchanger 24 is for exchanging heat with indoor air. The filter 25 is provided above the suction port 21 and collects dust in the air that has passed through the suction port 21. The filter cleaning mechanism 26 scrapes the filter 25 with a filter moving unit 27 for moving the filter 25 in the direction of arrow A or arrow B in FIG. 2, brushes 28 and 28 that scrape dust collected by the filter 25 from the filter 25. And a dust box 29 for storing the generated dust. The filter moving unit 27 and the brush 28 are connected to a filter cleaning driving unit 26a (FIG. 8) that functions as a driving source thereof, and are driven by the filter cleaning driving unit 26a.

  In addition, the storage detection limit switches 4a and 4b, the panel lock mechanisms 8a and 8b, the panel elevating drive units 9a and 9b, and the control unit 10 are accommodated in the main body 2, which will be described later.

〔flat panel〕
As shown in FIG. 1, the flat panel 3 has a substantially rectangular shape that is elongated along the W direction of the main body 2, similarly to the suction port 21. The flat panel 3 can be rotatably attached to the main body 2 as shown in FIGS. 1B and 5B. Further, as shown in FIGS. 1C and 5C, the flat panel 3 is suspended by two wires 91a and 91b (described later) in the panel lifting and lowering drive units 9a and 9b.

  Specifically, when the flat panel 3 is located in the vicinity of the suction port 21, the flat panel 3 takes a locked state in which the flat panel 3 is locked to the main body 2 by the panel lock mechanisms 8 a and 8 b. Here, as a case where the flat panel 3 takes a locked state, as shown in FIGS. 1A and 5A, the flat panel 3 is housed in the main body 2 and the suction port 21 is closed, As shown in FIG. 1B and FIG. 5B, there is a state in which the flat panel 3 is rotatable with respect to the main body 2 around the end 3a on the outlet 22 side. In other words, when the flat panel 3 according to the present embodiment is in a locked state, as shown in FIGS. 1C and 5B, the end 3b (one end) is centered on the end 3a of the flat panel 3. The suction port 21 can be opened and closed by raising and lowering. In particular, when the flat panel 3 rotates with respect to the main body 2, the flat panel 3 rotates around the rotation shaft 31 connected to the output shaft of the panel rotation motor 32 (FIG. 3) and sucks. The mouth 21 can be opened and closed (FIGS. 1B and 5B).

  Here, in this embodiment, the rotation axis 31 of the flat panel 3 is not provided in the main body of the flat panel 3 but is taken as an example when it is provided on the decorative panel 2b side of the main body 2. Specifically, the rotation shaft 31 is provided at both end portions of the long side close to the blowout port 22 among the long sides of the suction port 21 in the decorative panel 2b. The rotating shaft 31 is connected to the flat panel 3 by being gripped by gripping portions 81a and 81b (described later) of the panel lock mechanisms 8a and 8b, whereby the flat panel 3 is locked to the main body 2. That is, the rotation shaft 31 plays a role of connecting the flat panel 3 and the main body 2 so that the flat panel 3 can be rotated with respect to the main body 2 when the flat panel 3 is locked. Then, after the flat panel 3 and the main body 2 are connected by the rotation shaft 31, the flat panel 3 is rotated by a predetermined angle with respect to the main body 2 when the panel rotation motor 32 is driven to rotate. Can be released. When the flat panel 3 opens the suction port 21, indoor air is sent into the main body 2 through the suction port 21 from the direction of arrow C in FIG.

  In addition, as another case where the flat panel 3 takes a locked state, as shown in FIG. 4, a so-called abnormal state in which a part of the flat panel 3 is locked to the main body 2 can be cited. That is, the abnormal state of the flat panel 3 is that one of the two rotating shafts 31 connects the flat panel 3 and the main body 2, but the other rotating shaft 31 is connected to the flat panel 3 and the main body 2. The state which is not connected.

  Further, the flat panel 3 can take an unlocked state in which the lock on the main body 2 is released. That is, the unlocked state of the flat panel 3 is a state in which the two rotating shafts 31 are not connected to the flat panel 3 and the flat panel 3 is suspended from the main body 2 by the two wires 91a and 91b. The state that is lowered. In this case, as shown in FIG. 1C and FIG. 5C, the flat panel 3 is placed below the suction port 21 as the whole flat panel 3 by feeding and winding the wires 91a and 91b. You can go down and up.

  Such a flat panel 3 is located in the vicinity of the suction port 21 when the indoor unit 1 is stopped or in operation (air-conditioning operation or filter cleaning operation) and takes a locked state (for example, FIG. 1A). (B)). And at the time of the maintenance of the indoor unit 1, the unlocked state is taken and it descends below the suction port 21 (FIG. 1 (c)).

[Storage detection limit switch]
As shown in FIG. 5, two storage detection limit switches 4a and 4b are provided near the suction port 21 of the decorative panel 2b. More specifically, the two storage detection limit switches 4 a and 4 b are provided at a predetermined distance from each other along the long side of the suction port 21 that is separated from the blowout port 22.

  In each of the storage detection limit switches 4a and 4b, the flat panel 3 is located at a position P (see FIG. 2, corresponding to the first predetermined position, the second predetermined position, and the third predetermined position) in the vicinity of the suction port 21 in the decorative panel 2b. Detect that. More specifically, the storage detection limit switches 4a and 4b output an ON signal (corresponding to the first detection result) when the end 3b of the flat panel 3 is at the position P. On the other hand, when the end 3b of the flat panel 3 is not at the position P (for example, when it is located at the position R or the position Q in FIG. 2), the storage detection limit switches 4a and 4b receive the OFF signal (the second detection result). Equivalent). Accordingly, when the flat panel 3 is positioned as shown in FIG. 1A, each of the storage detection limit switches 4a and 4b outputs an ON signal. When the flat panel 3 is positioned as shown in FIGS. 1B and 1C, each of the storage detection limit switches 4a and 4b outputs an off signal. The ON signal and the OFF signal output by the storage detection limit switches 4 a and 4 b in this way are taken into the control unit 10.

  As shown in FIGS. 1A to 1C and FIGS. 5A to 5C, when the flat panel 3 is substantially parallel to the decorative panel 2b of the main body 2, the storage detection limit switch Both 4a and 4b output the same signal. However, as shown in FIG. 4, when the flat panel 3 is not parallel to the decorative panel 2b and takes an abnormal state, the storage detection limit switches 4a and 4b output different signals.

(Horizontal flap)
The horizontal flap 5 is for guiding the air blown out from the blowout port 22 in the direction of arrow D in FIG. 1B, and is provided so that the blowout port 22 can be opened and closed. The horizontal flap 5 takes the attitude | position which closes the blower outlet 22 at the time of an operation stop and the maintenance of the indoor unit 1 (FIG. 1 (a) (c)). Further, when the indoor unit 1 is performing the air conditioning operation, the horizontal flap 5 rotates around the end on the suction port 21 side as an axis to open the air outlet 22 (FIG. 1B). ). Such a horizontal flap 5 is rotationally driven by a motor, a gear (both not shown) or the like.

[Receiver]
As illustrated in FIG. 1, the receiving unit 6 is provided on the decorative panel 2 b of the main body 2. The receiving unit 6 is provided so as to receive various operation start instructions, various settings, and the like sent from the remote controller. For example, the receiving unit 6 can receive an instruction for starting an air conditioning operation such as an air conditioning operation or a set temperature in the room via a remote controller. Moreover, the receiving part 6 can receive the raising / lowering instruction | indication of the flat panel 3 via a remote controller.

  In this embodiment, the start and stop instructions for the air conditioning operation such as the air conditioning operation, and the instructions for raising and lowering the flat panel 3 and the start instruction for the filter cleaning operation at the time of maintenance are sent via separate remote controllers. Take as an example. FIG. 6A shows the external appearance of a remote controller used when a user gives instructions to start and stop the air conditioning operation. FIG. 6B shows the external appearance of a remote controller used when a user issues a flat panel 3 lifting / lowering instruction or a filter cleaning operation start instruction.

[Operation status display section]
The driving state display unit 7 is provided on the decorative panel 2 b of the main body 2 in the same manner as the receiving unit 6. The operation state display part 7 is comprised by LED, for example, and performs lighting or blinking according to the operation condition of the indoor unit 1.

  For example, the operation state display unit 7 is lit in green when the flat panel 3 is rotated by a predetermined angle with respect to the main body 2 as shown in FIG. The operation state display unit 7 is lit in orange when the flat panel 3 is in the state where the suction port 21 is closed as shown in FIG. 1A and the cleaning operation of the filter 25 is being performed. . Further, the operation state display unit 7 is prohibited from raising and lowering the flat panel 3 (that is, the operation of the flat panel 3 being lowered or raised below the suction port 21 as shown in FIG. 1C). When the receiving unit 6 receives an instruction to raise or lower the flat panel 3 in the state of being on, it lights up in red. Thus, the user of the indoor unit 1 can check the current operating state of the indoor unit 1 by changing the color of the operating state display unit 7 that is lit according to the operating state of the indoor unit 1. Here, as a case where the raising / lowering operation of the flat panel 3 is prohibited, for example, a case where the panel lock mechanisms 8a, 8b and the panel raising / lowering drive units 9a, 9b are out of order can be cited.

  Further, the operation state display unit 7 blinks in red when the reception unit 6 receives an instruction to start an air conditioning operation if the flat panel 3 is in an unlocked state (for example, FIG. 1C). Thereby, the user of the indoor unit 1 can know that the air conditioning operation is performed with the flat panel 3 in the unlocked state.

[Panel lock mechanism]
The panel lock mechanisms 8a and 8b are for locking and unlocking the flat panel 3 to the main body 2, and as shown in FIGS. 5 (a) to 5 (c), the suction port of the decorative panel 2b. Two are provided near 21. More specifically, the panel lock mechanisms 8a and 8b according to this embodiment are provided one by one at both ends of the long side of the suction port 21 on the side close to the blowout port 22. Each panel lock mechanism 8a, 8b has grips 81a, 81b, lock motors 82a, 82b, and lock limit switches 83a, 83b, respectively, as shown in FIG. As described above, the panel lock mechanisms 8a and 8b have the same configuration although the positions provided on the decorative panel 2b are different. Therefore, hereinafter, the panel lock mechanism 8a will be described as an example with reference to FIG.

  The gripping portion 81 a is for gripping the rotation shaft 31 of the flat panel 3. More specifically, the gripping portion 81a according to the present embodiment can be moved a predetermined distance in the direction of arrow E or F in FIG. 3 by rotational driving of the lock motor 82a. The gripping part 81 a has a connecting part (not shown) that can be connected to the rotating shaft 31 of the flat panel 3. When the gripping portion 81 a having such a configuration moves in the direction of the arrow E, the connecting portion is connected to the rotating shaft 31 of the flat panel 3, and the flat panel 3 can be locked to the main body 2. On the other hand, when the gripping portion 81a moves in the direction of the arrow F, the connecting portion is separated from the rotating shaft 31 of the flat panel 3, and the flat panel 3 can be brought into an unlocked state.

  The lock motor 82a is a drive source for moving the grip portion 81a, and can be rotationally driven in a CW (Clock Wise) direction or a CCW (Counter Clock Wise) direction. The drive control of the lock motor 82a is performed by the control unit 10 described later.

  The lock limit switch 83a detects whether or not the flat panel 3 is in a locked state. Specifically, the lock limit switch 83a according to the present embodiment is connected to the lock motor 82a via a gear (not shown), and the gripping portion 81a is rotated as the lock motor 82a rotates in the CW direction or the CCW direction. It is possible to move by a predetermined distance in the direction of arrow E or arrow F. The lock limit switch 83a is directly connected to the gripping portion 81a. As a result, the gripping portion 81a moves in the direction of the arrow E or the arrow F together with the movement of the lock limit switch 83a, so that the flat panel 3 can be locked to the main body 2 or unlocked.

  When such a lock limit switch 83a moves to the end in the direction of arrow E, it is determined that the rotation shaft 31 is gripped by the gripping portion 81a, and an ON signal indicating that the flat panel 3 is locked. Is output. Conversely, when the lock limit switch 83a moves to the end in the direction of arrow F, it determines that the gripping portion 81a has moved away from the rotating shaft 31, and indicates that the flat panel 3 has been unlocked. Is output.

[Panel lift drive unit]
The panel raising / lowering drive parts 9a and 9b are for raising or lowering the flat panel 3 itself. As shown in FIG. 5, two panel raising / lowering driving parts 9a and 9b are provided in the vicinity of the suction port 21 in the decorative panel 2b of the main body 2. . More specifically, the panel raising / lowering drive parts 9a and 9b are provided one by one along the short side of the decorative panel 2b. As shown in FIG. 8, each panel elevating drive unit 9a, 9b has wires 91a, 91b, elevating units 92a, 92b, and position detection counter limit switches 97a, 97b, respectively.

  One end of each wire 91a, 91b is connected to the flat panel 3, and the other end is connected to each elevating part 92a, 92b. As shown in FIG. 1C, the two wires 91a and 91b lift a portion close to the front end portion 3a of the flat panel 3 and a portion close to the back end portion 3b of the flat panel 3. .

  The elevating parts 92a and 92b wind and unwind the wires 91a and 91b. In addition, the raising / lowering part 92a and the raising / lowering part 92b have the same structure except the wires which wind up etc. differ. Therefore, hereinafter, the configuration of the elevating unit 92a will be described as an example. As shown in FIG. 7, the elevating part 92 a includes a pulley 93, a take-up gear 94, a drive gear 95, and an elevating motor 96. The pulley 93 is formed by integrally forming a pulley portion 93a and a cam portion 93b. The pulley portion 93a supports the wire 91a and rotates as the wire 91a moves. The cam portion 93b includes a small-diameter curved surface portion, a large-diameter curved surface portion, and a flat surface portion connecting both the curved surface portions. The winding gear 94 has a bobbin 94a for winding the wire 91a and a gear part 94b, and the bobbin 94a and the gear part 94b are integrally formed. The drive gear 95 meshes with the gear portion 94 b of the winding gear 94 and rotates the winding gear 94. Thereby, the wire 91a can be drawn out from the bobbin 94a or wound around the bobbin 94a. The elevating motor 96 is a stepping motor for driving the drive gear 95 to rotate.

  The position detection counter limit switches 97a and 97b increase the counter value according to the feeding of the wires 91a and 91b. Here, since the position detection counter limit switches 97a and 97b have the same configuration, the configuration of the position detection counter limit switch 97a is taken as an example. As shown in FIG. 7, the position detection counter limit switch 97a is a micro switch having a lever 98a, and is turned on when the lever 98a is pushed. The lever 98a is always in contact with the cam portion 93b of the pulley 93, and is pressed when the contact portion with the cam portion 93b changes from the small diameter curved surface portion to the large diameter curved surface portion or from the large diameter curved surface portion to the small diameter curved surface portion. .

(Control part)
The control unit 10 is composed of a microcomputer composed of a CPU and a memory. As shown in FIG. 8, the storage detection limit switches 4a and 4b, the reception unit 6, the operation state display unit 7, the panel lock mechanisms 8a and 8b, It is connected to the panel lift drive units 9a and 9b, the fan motor 23a, the filter cleaning drive unit 26a, and the panel rotation motor 32, and controls each connected device. For example, the control unit 10 performs operation control such as cooling operation and heating operation, rotation drive control of the fan motor 23a, and the like based on the start instruction of the air conditioning operation received by the reception unit 6 from the remote controller. In addition, when the receiving unit 6 receives an instruction to start the filter cleaning operation during the raising operation of the flat panel 3, the control unit 10 is configured so that the filter cleaning operation is started after the raising operation of the flat panel 3 is completed. The filter cleaning drive unit 26a is controlled. In particular, when the indoor unit 1 is turned on, the control unit 10 according to the present embodiment controls the operation of the flat panel 3 according to the state of the flat panel 3 at that time. In addition, the control unit 10 performs operation control of the panel lock mechanisms 8 a and 8 b and display control of the operation state display unit 7. In order to perform such an operation, the control unit 10 functions as a panel operation control unit 11, a lock mechanism control unit 12, and a display control unit 13.

[Panel operation control unit]
The panel operation control unit 11 controls the operation of the flat panel 3. That is, the panel operation control unit 11 controls the panel lift drive units 9a and 9b, and causes the lift units 92a and 92b of the panel lift drive units 9a and 9b to feed and wind the wires 91a and 91b.

  Below, the control content of the panel operation control part 11 which concerns on this embodiment is demonstrated in detail.

  When the power of the indoor unit 1 is turned on when the flat panel 3 is in the unlocked state, the panel operation control unit 11 causes the flat panel 3 to perform an ascending operation when the receiving unit 6 receives an ascent instruction for the flat panel 3. The panel lifting / lowering drive units 9a and 9b are controlled. In other words, the panel operation control unit 11 prevents the panel elevating drive units 9a and 9b from performing initialization processing when the power to the indoor unit 1 is turned on when the flat panel 3 is unlocked, When there is an instruction to raise the flat panel 3 via the controller 3, the instruction to raise the flat panel 3 is output to the panel lifting / lowering drive units 9a and 9b for the first time. Here, the initialization process is a process in which the flat panel 3 automatically rises to the suction port 21 of the decorative panel 2b, triggered by the power-on of the indoor unit 1. As a result, the lifting and lowering portions 92a and 92b of the panel lifting and lowering driving portions 9a and 9b do not feed out the wires 91a and 91b unless the user gives an instruction to lift the flat panel 3 through the remote controller. The flat panel 3 that is unlocked when the machine 1 is turned on does not automatically rise.

  Here, in the ascending operation of the flat panel 3, the panel operation control unit 11 performs the panel up / down driving unit until the flat panel 3 reaches the position P in FIG. 2 and the storage detection limit switches 4a and 4b output the ON signal. The elevators 92a and 92b of 9a and 9b are made to wind the wires 91a and 91b. When the storage detection limit switches 4a and 4b output an on signal, the panel operation control unit 11 stops the winding of the wires 91a and 91b by the elevating units 92a and 92b. As described above, the panel operation control unit 11 determines whether or not the flat panel 3 is sufficiently raised based on the outputs of the storage detection limit switches 4a and 4b, and controls the operation of the flat panel 3.

  Further, the panel operation control unit 11 is configured so that the end 3b of the flat panel 3 is lowered by a predetermined distance when the power of the indoor unit 1 is turned on when the flat panel 3 is locked (FIG. 1B). The lifting / lowering drive units 9a and 9b are controlled. And the panel operation control part 11 controls the panel raising / lowering drive parts 9a and 9b so that the edge part 3b of the flat panel 3 may rise, after the edge part 3b of the flat panel 3 falls for a predetermined distance. That is, when the power to the indoor unit 1 is turned on when the flat panel 3 is locked, the panel operation control unit 11 remains in the locked state without releasing the lock of the flat panel 3 by the lock mechanism control unit 12. The flat panel 3 is once rotated in the direction to open the suction port 21 (FIG. 1B), and then is rotated in the direction to close the suction port 21 (FIG. 1A). As a result, the lifting and lowering portions 92a and 92b of the panel lifting and lowering portions 9b and 9b first feed out the wires 91a and 91b, so that the end 3b of the flat panel 3 is lowered. Next, when the lowered distance of the end 3b of the flat panel 3 reaches a predetermined distance (that is, when the rotation angle of the flat panel 3 reaches a predetermined angle), the elevating parts 92a and 92b are wound around the wires 91a and 91b. In order to take out, the edge part 3b of the flat panel 3 raises.

  Here, the “predetermined distance” (predetermined angle) when the end 3b of the flat panel 3 is lowered will be described with reference to FIG. When the indoor unit 1 is turned on, it is considered that the flat panel 3 is in the position P and the outlet 21 is closed, and the storage detection limit switches 4a and 4b are outputting the ON signal. In this case, when the flat panel 3 rotates, that is, when the end 3b of the flat panel 3 moves down and the position of the end 3b of the flat panel 3 deviates from the position P (position R), the storage detection limit switches 4a and 4b. Output changes from an on signal to an off signal. The predetermined distance according to the present embodiment corresponds to the distance that the end portion 3b of the flat panel 3 is lowered until the output of the storage detection limit switches 4a and 4b changes from the on signal to the off signal. In the present embodiment, specifically, as shown in FIG. 2, the distance from the position P to the position R of the end 3b of the flat panel 3 is referred to as “predetermined distance” (predetermined angle). For example, when the distance that the flat panel 3 can be moved up and down during maintenance is 3 m, the predetermined distance can be 0.3 m, for example. As described above, when the indoor unit 1 according to the present embodiment is turned on when the power of the indoor unit 1 is turned on when the flat panel 3 is locked, the flat panel 3 is not immediately raised using the power on of the indoor unit 1 as a trigger. The end 3b of the flat panel 3 is once lowered. As a result, even when the storage detection limit switches 4a and 4b have already output the ON signal since the power is turned on, the panel operation control unit 11 determines whether or not the initialization process for raising the flat panel 3 has been completed. Can be reliably determined based on changes in the outputs of the storage detection limit switches 4a and 4b (specifically, changes from an off signal to an on signal).

  In the operation in which the end 3b of the flat panel 3 is raised after the predetermined distance is lowered, the panel operation control unit 11 performs the storage detection limit switch 4a, the same as when the flat panel 3 is unlocked when the power is turned on. The operation of the flat panel 3 is controlled based on the output 4b. That is, the panel operation control unit 11 connects the wires 91a and 91b to the elevating units 92a and 92b until the end 3b of the flat panel 3 reaches the position P in FIG. 2 and the storage detection limit switches 4a and 4b output an ON signal. Let's wind up. When the storage detection limit switches 4a and 4b output an on signal, the panel operation control unit 11 stops the winding of the wires 91a and 91b by the elevating units 92a and 92b.

  Here, as described above, when the panel operation control unit 11 determines whether the flat panel 3 is in the locked state or the unlocked state, the lock limit switch 83a in the panel lock mechanisms 8a and 8b. , 83b are used. Specifically, the panel operation control unit 11 determines that the flat panel 3 is in the locked state when both of the lock limit switches 83a and 83b output an on signal. Conversely, the panel operation control unit 11 determines that the flat panel 3 is in the unlocked state when both of the lock limit switches 83a and 83b output an off signal. When either one of the lock limit switches 83a and 83b outputs an on signal and the other outputs an off signal, the panel operation control unit 11 indicates that the flat panel 3 is in an abnormal state as shown in FIG. It is judged that it is. In this case, the panel operation control unit 11 performs the same control as when it is determined that the flat panel 3 is in the locked state because the flat panel 3 is not completely in the unlocked state.

  The panel operation control unit 11 corrects the opening of the flat panel 3 based on the air volume. For example, the panel operation control unit 11 increases the rotation angle of the flat panel 3 as the air volume is higher than a predetermined tap. Thereby, the indoor unit 1 can perform an air-conditioning operation without impairing the design of the indoor unit 1 itself.

[Lock mechanism controller]
The lock mechanism control unit 12 controls the panel lock mechanisms 8a and 8b. For example, the lock mechanism controller 12 checks the state of the flat panel 3 based on the outputs of the lock limit switches 83a and 83b of the panel lock mechanisms 8a and 8b. Further, the lock mechanism control unit 12 determines whether the flat panel 3 is securely locked to the main body 2 based on the outputs of the lock limit switches 83a and 83b, or until the flat panel 3 is reliably unlocked. The lock motors 82a and 82b are driven to rotate.

  More specifically, the lock mechanism control unit 12 first checks the outputs of the storage limit switches 4a and 4b when an instruction for air conditioning operation is given when the flat panel 3 is in the unlocked state. If the outputs of the storage limit switches 4a and 4b are ON signals, the lock mechanism control unit 12 monitors the outputs of the lock limit switches 83a and 83b so that the flat panel 3 is locked to the main body 2. The lock motors 82a and 82b are driven to rotate.

(Display control unit)
The display control unit 13 controls the operation state display unit 7.

  For example, the display control unit 13 performs the air-conditioning operation in a state where the lock limit switches 83a and 83b output an on signal and the storage detection limit switches 4a and 4b output an off signal (that is, FIG. 1 (b)). When the operation is being performed, the operation state display unit 7 is lit in green. The display control unit 13 is in a state in which the lock limit switches 83a and 83b and the storage detection limit switches 4a and 4b are both outputting an ON signal (that is, FIG. 1A) and the filter cleaning operation is being performed. Then, the operation state display unit 7 is lit in orange. Further, when the receiving unit 6 receives an instruction to raise or lower the flat panel 3 when the raising / lowering operation of the flat panel 3 is prohibited, the display control unit 13 lights the operation state display unit 7 in red.

  Further, the display control unit 13 is in a state where the lock limit switches 83a and 83b are outputting an off signal or in a state where the storage detection limit switches 4a and 4b are outputting an off signal (that is, FIG. When the reception unit 6 receives an instruction to start the air conditioning operation, the operation state display unit 7 blinks red.

(2) Operation Next, a characteristic operation of the indoor unit 1 according to the present embodiment will be described. FIG. 9 is a flowchart for explaining a characteristic operation of the indoor unit 1 according to the present embodiment.

  Steps S1 and S2: When the indoor unit 1 is turned on (Yes in S1), the panel operation control unit 11 determines whether the flat panel 3 is in the locked state or the unlocked state. Determination is made based on the outputs of 83a and 83b (S2).

  Steps S3 to S4: When the flat panel 3 is in the unlocked state in Step S2 (Yes in S2), the panel operation control unit 11 waits until the receiving unit 6 receives the ascending instruction (S3). The panel lift drive units 9a and 9b are controlled so as not to move 3. When an instruction to raise the flat panel 3 is given via the remote controller (Yes in S3), the panel operation control unit 11 controls the panel lifting / lowering driving units 9a and 9b so that the flat panel 3 starts to rise. (S4). As a result, the wires 91a and 91b are wound up by the elevating parts 92a and 92b of the panel elevating control parts 9a and 9b, and the flat panel 3 is raised.

  Step S5: When the flat panel 3 is in the locked state in Step S2 (No in S2), the panel operation control unit 11 causes the panel lifting / lowering drive unit to start the end 3b of the flat panel 3 to descend. 9a and 9b are controlled (S5). As a result, the wires 91a and 91b are fed out by the lifting / lowering portions 92a and 92b of the panel lifting / lowering control portions 9a and 9b, and the flat panel 3 is rotated so that the end portion 3b moves below the suction port 21. .

  Steps S6 to S7: The panel operation control unit 11 controls the panel lift control units 9a and 9b so that the end 3b of the flat panel 3 is lowered until the end 3b of the flat panel 3 is lowered by a predetermined distance. More specifically, the panel operation control unit 11 outputs the ON signal because the end 3b of the flat panel 3 is located at the position P when the power is turned on in step S1, the storage detection limit 4a, The flat panel 3 is rotated to lower the end portion 3b of the flat panel 3 until 4b outputs an off signal (S6). When the outputs of the storage detection limit switches 4a and 4b change from the on signal to the on signal (Yes in S6), the panel operation control unit 11 causes the end 3b of the flat panel 3 to stop and move up. Next, the panel lift control units 9a and 9b are controlled (S7). That is, when the outputs of the storage detection limit switches 4a and 4b change, the elevating parts 92a and 92b stop winding the wires 91a and 91b and perform winding. Thereby, the flat panel 3 comes to rotate so that the edge part 3b may move to the suction inlet 21 direction contrary to step S5.

  Steps S8 to S9: When the storage detection limit switches 4a and 4b are turned on because the end 3b of the flat panel 3 has reached the position P in Steps S4 and S7 (Yes in S8), the panel operation control unit 11 stops the raising operation of the flat panel 3. Thereby, the raising / lowering parts 92a and 92b stop the raising operation | movement of the wires 91a and 91b. Then, after the flat panel 3 stops the ascending operation, the indoor unit 1 performs the next operation such as an air conditioning operation (S9).

(3) Effect (A)
According to the indoor unit 1 according to the present embodiment, when the flat panel 3 is unlocked and the indoor unit 1 is turned on, the flat panel 3 is made by the user of the indoor unit 1 via a remote controller or the like. It rises based on the rise instruction of the flat panel 3. Therefore, it is possible to avoid the risk of the user coming into contact with the rising flat panel 3.

(B)
When the operation of the effect (A) is performed, the panel operation control unit 11 controls the ascending operation of the flat panel 3 based on the outputs of the storage detection limit switches 4a and 4b. That is, when the outputs of the storage detection limit switches 4a and 4b remain off signals, the panel operation control unit 11 determines that the flat panel 3 has not risen sufficiently, and continues to raise the flat panel 3. . Then, when the outputs of the storage detection limit switches 4a and 4b are switched from the off signal to the on signal, the panel operation control unit 11 determines that the flat panel 3 is sufficiently raised and stops the raising operation of the flat panel 3. . Thereby, when operation | movement of an effect (A) is performed, the flat panel 3 can raise to the position P reliably.

(C)
Further, when the operation of the effect (A) is performed, the flat panel 3 can be raised up to the vicinity of the decorative panel 2 b of the main body 2.

(D)
Further, according to the indoor unit 1 according to the present embodiment, when the power of the indoor unit 1 is turned on while the flat panel 3 is locked to the main body 2, first, the end 3 b of the flat panel 3 is lowered by a predetermined distance. . Thereafter, the end 3b of the flat panel 3 rises. That is, the flat panel 3 performs an operation of closing the suction port 21 after performing an operation of opening the suction port 21 of the main body 2. Accordingly, for example, when the flat panel 3 is completely accommodated in the main body 2 and the lifting operation of the end 3b of the flat panel 3 is not completed, the flat panel 3 moves to the next operation (for example, the lowering operation of the flat panel 3). Etc.) can be prevented.

(E)
When the operation of the effect (D) is performed, the end 3b of the flat panel 3 is lowered by the amount that the outputs of the storage detection limit switches 4a and 4b change from the on signal to the off signal (that is, a predetermined distance). Therefore, the end 3b of the flat panel 3 can be reliably lowered by a predetermined distance.

(F)
When the operation of the effect (D) is performed, the panel operation control unit 11 controls the ascending operation of the flat panel 3 based on the outputs of the storage detection limit switches 4a and 4b. That is, when the outputs of the storage detection limit switches 4a and 4b remain off signals, the panel operation control unit 11 determines that the end 3b of the flat panel 3 is not sufficiently raised, and the flat panel 3 The rising of the end 3b is continued. And the panel operation control part 11 judges that the edge part 3b of the flat panel 3 raised enough, when the output of the storage detection limit switches 4a and 4b switched from the off signal to the on signal, and the end of the flat panel 3 The raising operation of the part 3b is stopped. Thereby, when operation | movement of an effect (D) is performed, the edge part 3b of the flat panel 3 can raise to the position P reliably.

(G)
Further, since the position P is near the decorative panel 2b which is the lower surface of the main body 2, when the operation of the effect (D) is performed, the panel operation control unit 11 moves the end 3b of the flat panel 3 from the position P. Can also be reliably lowered to the position P and can be reliably raised to the position P.

<Other embodiments>
(A)
In the said embodiment, the case where the driving | running state display part 7 consisted of LED was demonstrated. However, since the operation state display part 7 should just be able to alert | report to the user the operation state of the indoor unit 1 at that time, it is not limited to the structure which consists of LED. Other configurations of the operation state display unit 7 include liquid crystal, a combination of liquid crystal and LED, a combination of LED and sound, and the like.

(B)
In the above embodiment, the case where the panel lock mechanisms 8a and 8b are configured by the gripping portions 81a and 81b, the lock motors 82a and 82b, and the lock limit switches 83a and 83b has been described. However, the structure of the mechanism for locking or unlocking the flat panel 3 to the main body 2 is not limited to this, and any structure may be used.

(C)
In the said embodiment, the case where the rotating shaft 31 of the flat panel 3 was provided in the decorative panel 2b side of the main body 2 was demonstrated. However, the rotation shaft 31 may be provided on the flat panel 3 side instead of the decorative panel 2b side.

(D)
In the said embodiment, the case where all the 1st detection parts-the 3rd detection part corresponded to storage detection limit switch 4a, 4b was demonstrated. However, the first detection unit to the third detection unit may be provided separately.

  In the above embodiment, the case where the first predetermined position to the third predetermined position are the position P has been described. However, the first predetermined position to the third predetermined position may be different positions.

(E)
In the above-described embodiment, the case where the raising operation of the flat panel 3 is continued until the outputs of the storage detection limit switches 4a and 4b are changed has been described. However, when the output does not change, for example, because the storage detection limit switches 4a and 4b are out of order, the panel operation control unit 11 uses the change in the output of the storage detection limit switches 4a and 4b as a trigger. You will not be able to stop climbing. Therefore, assuming such a case, the panel operation control unit 11 may perform control to stop the rise of the flat panel 3 when, for example, a predetermined time has elapsed since the flat panel 3 started to rise. Further, the position detection counter limit switches 97a and 97b in the elevating parts 92a and 92b are of a type that increases the counter value according to the feeding of the wires 91a and 91b and decreases the counter value according to the winding of the wires 91a and 91b. If there is, the panel operation control unit 11 may stop the ascending operation of the flat panel 3 when the counter value reaches a predetermined value.

  INDUSTRIAL APPLICABILITY The indoor unit according to the present invention has an effect that it is possible to avoid a risk that a user contacts a rising panel, and can be applied to an indoor unit of a ceiling-mounted air conditioner.

(A) It is a perspective view of the indoor unit of the air conditioning apparatus which concerns on this embodiment, Comprising: The figure which shows the state which has closed the suction inlet while the flat panel is locked to the main body. (B) It is a perspective view of the indoor unit of the air conditioning apparatus which concerns on this embodiment, Comprising: The figure which shows the state which has opened the suction inlet while the flat panel is locked to the main body. (C) It is a perspective view of the indoor unit of the air conditioning apparatus which concerns on this embodiment, Comprising: The figure which shows the state by which the flat panel is unlocked with respect to the main body, and is located under the indoor unit main body. Schematic which shows the structure inside the indoor unit main body which concerns on this embodiment. Schematic which shows the panel lock mechanism which concerns on this embodiment, and the structure of the vicinity. It is a perspective view of the indoor unit of the air conditioning apparatus which concerns on this embodiment, Comprising: The figure which shows the abnormal state in which a part of flat panel is locked to the main body. (A) It is the schematic at the time of seeing the structure of the decorative panel vicinity which concerns on this embodiment from the inside of a main body, Comprising: The figure which shows the state which has closed the suction inlet while the panel takes a locked state. (B) It is the schematic at the time of seeing the structure of the decorative panel vicinity which concerns on this embodiment from the inside of a main body, Comprising: The figure which shows the state which has opened the suction inlet while the panel takes a locked state. (C) It is the schematic at the time of seeing the structure of the decorative panel vicinity which concerns on this embodiment from a main body inside side, Comprising: The figure which shows the state located in the downward direction of a suction inlet while taking a lock release state. (A) The external view of the remote controller used when a user gives an air-conditioning driving | operation instruction | indication. (B) The external view of the remote controller used when a user performs the raising / lowering instruction | indication of the flat panel 3. FIG. Schematic which shows the structure of the panel raising / lowering drive part which concerns on this embodiment. The block diagram which shows typically each apparatus which comprises the indoor unit which concerns on this embodiment. It is a figure for demonstrating operation | movement of the indoor unit which concerns on this embodiment, Comprising: The flowchart which shows operation | movement of an indoor unit when the power supply of an indoor unit is turned on.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Indoor unit 2 Main body 21 Suction inlet 22 Outlet 23 Air blower fan 24 Indoor heat exchanger 25 Filter 26 Filter cleaning mechanism 3 Flat panel 3a, 3b Flat panel end 31 Rotating shaft 32 Panel rotation motor 4a, 4b Storage detection Limit switch 5 Horizontal flap 6 Receiving part 7 Operating state display part 8a, 8b Panel lock mechanism 81a, 81b Grip part 82a, 81b Lock motor 83a, 81b Lock limit switch 9a, 9b Panel lift drive part 91a, 91b Wire 92a, 92b Lift 97a, 97b Position detection counter limit switch 10 Control unit 11 Panel operation control unit 12 Lock mechanism control unit 13 Display control unit

Claims (7)

An indoor unit (1) for a ceiling-mounted air conditioner,
The indoor unit body (2),
A locked state locked to the indoor unit main body (2) and an unlocked state unlocked to the indoor unit main body (2) can be adopted. When the unlocked state is adopted, the indoor unit main body ( A panel (3) that can be lowered below 2);
An instruction receiving unit (6) capable of receiving an upward instruction of the panel (3);
When the power to the indoor unit (1) is turned on when the panel (3) is unlocked, the instruction receiving unit (6) receives an instruction to raise the panel (3), so that the panel (3) A panel operation control unit (11) for controlling the operation of the panel (3) so as to rise;
An indoor unit (1) for an air conditioner. A first detector (4a, 4b) for detecting that the panel (3) is located at a first predetermined position;
The panel operation control unit (11) raises the panel (3) until the first detection unit (4a, 4b) detects that the panel (3) has reached the first predetermined position.
The indoor unit (1) of the air conditioning apparatus according to claim 1. The first predetermined position is near the lower surface of the indoor unit body (2).
The indoor unit (1) of the air conditioning apparatus according to claim 2. On the lower surface of the indoor unit main body (2), an air inlet (21) for indoor air is formed,
The panel (3) can open and close the suction port (21) by raising and lowering one end of the panel (3) when taking the locked state,
The panel operation control unit (11)
When the power of the indoor unit (1) is turned on when the panel (3) is locked, the one end of the panel (3) is lowered by a predetermined distance,
After one end of the panel (3) is lowered by the predetermined distance, the one end of the panel (3) is raised.
The indoor unit (1) of the air conditioning apparatus in any one of Claims 1-3. A first detection result indicating that one end of the panel (3) is located at a second predetermined position, or a second detection result indicating that one end of the panel (3) is not located at the second predetermined position. A second detector (4a, 4b) for outputting;
The predetermined distance is a distance by which the panel (3) descends until the output of the second detection unit (4a, 4b) changes from the first detection result to the second detection result.
The indoor unit (1) of the air conditioning apparatus according to claim 4. A third detector (4a, 4b) for detecting that one end of the panel (3) is located at a third predetermined position;
The panel operation control unit (11) detects that the one end portion of the panel (3) has reached the third predetermined position after the one end portion of the panel (3) is lowered by the predetermined distance. 4a, 4b) raises one end (3) of the panel until it is detected,
The indoor unit (1) of the air conditioning apparatus according to claim 4 or 5. The second predetermined position and the third predetermined position are near the lower surface of the indoor unit body (2).
The indoor unit (1) of the air conditioning apparatus according to claim 6.

Images